210 



BRITISH MOSSES. 



Leaves. Of two forms (dimorphous) . Stem leaves (b) recurved, ovate-acuminate ; 

 branch leaves roundish ovate, obtuse ; all faintly denticulate and two-nerved 

 at the base. 



Flowers and Fruit. Dioicous ; capsule oblong, cernuous. Not found in Britain. 

 Summer. 



Locality. Alpine rocks. Very rare. Ben Lawers, not far from the summit. 



Fig. 14. Hypnum Heteeopterum. 

 Wry-leaved Feather Moss (a) . 



Colour. Yellow green. 



Stems. Procumbent, pinnate, much thicker than the branches, which are curved 

 and slender. 



Leaves (b) . Imbricated obliquely, secund, ovate-acuminate, serrated, base 

 two-nerved. 



Flowers and Fruit. Dioicous; capsule elliptic, cernuous, horizontal. Eare. 

 Winter. 



Locality. Moist rocks, near waterfalls. 



